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Old 12-21-2018, 01:34 AM   #1
WelshZeCorgi
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Default Generator failure/low rpm during landing

How do you know when it's coming and how do you correct it? I seem to lose power during landings when I'm adding power during the phase when you start to lose translational lift.
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Old 12-21-2018, 01:42 AM   #2
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By not pulling hard on the collective, look at the engine RPM and rotor RPM gauges the generator failure will happen under 2 conditions

Rotor under RPM and rotor over RPM

You need to keep descent rate well under say 1 mtr/second when your out of ETL when you have some speed over say 100Kph you can be a little more keen on descent initially try to keep this under say 3mtr/second.
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Last edited by FragBum; 12-21-2018 at 11:37 PM. Reason: <typo>
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Old 12-21-2018, 01:53 AM   #3
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Quote:
Originally Posted by FragBum View Post
By not pulling hard on the collective, look at the engine RPM and rotor RPM gauges the generator failure will happen under 2 conditions

Rotor under RPM and rotor over RPM

You need to keep decent rate well under say 1 mtr/second when your out of ETL when you have some speed over say 100Kph you can be a little more keen on decent initially try to keep this under say 3mtr/second.

exactly! don't try to drive her like a bucking bronco. She's a beast, but also a joy to fly! one of the best modules in the inventory.
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Old 12-21-2018, 03:09 AM   #4
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Old 12-21-2018, 08:50 AM   #5
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Quote:
Originally Posted by WelshZeCorgi View Post
Just a heads-up, you probably already know it, but the VSI is graded in m/s and not f/min, so the resolution is less than many people are used to, i.e. "3" on the m/s scale is faster than "3" on the f/min.
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Old 12-21-2018, 09:46 AM   #6
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In the pilot cockpit instrument, lower left is an indicator showing you the blade AOA. Don't make changes that go beyond 3 degrees / second when flying her, even less when in ETL or ground effect as she will react quite prickly when you do so.
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Old 12-22-2018, 12:37 AM   #7
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Sounds like you suddenly pull a lot of collective and bog the rotor system casing a loss of rotor RPM due to increased drag from the rotor blades. The engines are not reacting fast enough to maintain rotor RPM, and consequently you're losing the generators.

You can pull collective, but do it slower, and sooner.
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Old 12-22-2018, 06:32 AM   #8
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Don't forget to consider the effects of Anti-icing and PSS on rotor droop.
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